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Home >> Audi >> 2021 >> S5 Premium Plus, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (Cylinder Head, VALVETRAIN (4-Cylinder Direct Injection 2.0L 4V TFSI Engine (Ea 888EVO4 BZ)) (DMSA)) >> 15 Cylinder Head, VALVETRAIN >> VALVETRAIN >> Valve Stem Seals, Removing And Installing >> Valve Stem Seals, Removing And Installing, Cylinder Head Installed >> Installing

Valve Stem Seals, Removing And Installing, Cylinder Head Installed: Installing

WARNING: This page is about a different car, the 2024 Audi Q5 e, 2024 Audi Q5, 2023 Audi Q5 e, and 2023 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Insert The Valve Stem Seal In The 3365
GWWA15-12114Courtesy of AUDI

-- Lightly oil the valve stem seal sealing lip.

-- Insert the valve stem seal into the seal installer -5- and carefully press it all the way onto the valve guide -1- over the Mounting Sleeve.

-- Remove the Assembly Tool.

If the valve retainers were removed from the assembly cartridge, they must be inserted into the Valve Cotter Tool Kit - Valve Insertion Device:VAS5161/18  first.

Fig 2: Identifying Installation Cartridge VAS 5161/8
GWWA15-0445Courtesy of AUDI

-- Press the assembly cartridge from above onto valve retainer inserting tool and valve retainers.

-- Insert the valve spring and the valve spring retainer. Refer to Figure.

-- Attach the Valve Cotter Tool Kit - Guide Plate:VAS5161/44  onto the cylinder head again.

Fig 3: Identifying Valve Cotter Tool Kit - Guide Plate 19c VAS5161/19C
GWWA15-11360Courtesy of AUDI

-- Insert the assembly cartridge into the guide plate.

-- Press the pressure fork down and pull the knurled bolt up while turning left and right. This inserts the valve retainers.

-- Release the pressure fork with the knurled bolt still raised.

-- Repeat the procedure on each valve.

Assembling

Assemble in the reverse order of removal. Note the following:

-- Install the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .

-- Install the spark plugs. Refer to OVERVIEW - IGNITION SYSTEM .

CAUTION:

Risk of damaging the valves and piston crowns by performing procedures on the valvetrain.

- Only start the engine 30 minutes after installation of the camshaft so that they do not contact the hydraulic lifters.

- To ensure valves do not strike pistons when starting, carefully rotate the crankshaft at least two turns.